Final answer:
The base year for both Index 1 and Index 2 is Year 1, where each index has a value of 100. Historical and international unemployment data provide insights into economic health and comparative analysis.
Step-by-step explanation:
The question presented involves index numbers associated with the growth of unemployment over an 8-year period. To determine the base years for the two indices, we should look for the years where each index is equal to 100 since that is the typical value used to represent the base year in index number calculations. Therefore, if we assume that Index 1 and Index 2 are tracking the same time frame but starting from different years, it is impossible to conclusively determine the exact base years without additional context or information. However, generally, Index 1 and Index 2 have 100 as the first value which implies that the first year (Year 1) is the base year for both indices.
Analyzing historical unemployment data shows fluctuations over time, with significant peaks during recessions, such as the early 1980s and 2007-2009. These reference points are important when considering unemployment trends and economic health, both domestically and in comparison with other countries. International unemployment comparisons can further provide perspective on how one country's rates stand against others at various points in time.